When my app update was rejected, I had the exact same feeling. This can't be a human being, I am talking to a bot. At some point I just gave up, which is still hurting a bit. What did you do to talk to an actual human?
I'm not sure what did it at the end — I literally called the guy a cyborg and asked for someone else to review the appeal. I also filled in all sorts of appeals/forms, even for unrelated things and some even multiple times. I still don't know what did it for us.